Patent US1754677A successfully refreshed from Google Patents.
Patent EP0451692A2 successfully refreshed from Google Patents.
EP0451692A2
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EP
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Refrigerant
Assignee: Daikin Industries Ltd
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Filing: 1991-04-03
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Granted: —
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Expires: 2011-04-03
Abstract
Abstract The invention provides a refrigerant comprising a mixture of three compounds selected from the group consisting of hydrofluorocarbons represented by the formula C₁H m F n (1) wherein when 1 is 1, m is an integer of 1 or 2, n is an integer of 2 or 3 and m + n =4; when 1 is 2, m is an integer of 1 to 4, n is an integer of 2 to 5 and m + m = 6; and when 1 is 3, m is an integer of 1 to 3, n is an integer of 5 to 7 and m + n = 8.
Inventors
- 👤 Yukio Omure
- 👤 Masahiro Noguchi
- 👤 Katsuki Fujiwara
- 👤 Hiroshi Momota
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 13:00
CPC Classifications
C; C09; C09K; C09K5/00; C09K5/02; C09K5/04; C09K5/041; C09K5/044; C09K5/045; C09K2205/00; C09K2205/22
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
103 words
A refrigerant comprising a mixture of three compounds selected from the group consisting of hydrofluorocarbons represented by the formula C₁H m F n (1) wherein when 1 is 1, m is an integer of 1 or 2, n is an integer of 2 or 3 and m + n =4; when 1 is 2, m is an integer of 1 to 4, n is an integer of 2 to 5 and m + m = 6; and when 1 is 3, m is an integer of 1 to 3, n is an integer of 5 to 7 and m + n = 8.
Claim 2
Dependent Claim
26 words
A refrigerant according to claim 1 which is composed of a mixture of three compounds of the formula (1) wherein m/ m + n < 0.5.
Claim 3
Dependent Claim
109 words
A refrigerator which is operated using a refrigerant comprising a mixture of three compounds selected from the group consisting of hydrofluorocarbons represented by the formula C₁H m F n (1) wherein when 1 is 1, m is an integer of 1 or 2, n is an integer of 2 or 3 and m + n =4; when 1 is 2, m is an integer of 1 to 4, n is an integer of 2 to 5 and m + m = 6; and when 1 is 3, m is an integer of 1 to 3, n is an integer of 5 to 7 and m + n = 8.
Claim 4
Dependent Claim
30 words
A refrigerator according to claim 3 which is operated using a refrigerant composed of a mixture of three compounds of the formula (1) wherein m/ m + n < 0.5.
References Cited (Backward Citations)
No citation records indexed.
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